Engine Opel X20DTH

The 2.0-liter Opel X20DTH or LD1 diesel engine was produced from 1997 to 2000 and was installed only on the company’s two most popular cars, the Vectra and Omega models. After upgrading to Euro 3 environmental standards, the unit received a different Y20DTH index.

The X family also includes engines: X17DTL, X20DTL and X22DTH.

The engine was installed on:

  • Opel Omega B (V94) in 1997 – 2000;
  • Opel Vectra B (J96) in 1997 – 2000.


Production years 1997-2000
Displacement, cc 1995
Fuel system direct injection
Power output, hp 100
Torque output, Nm 205
Cylinder block cast iron R4
Block head aluminum 16v
Cylinder bore, mm 84
Piston stroke, mm 90
Compression ratio 18.5
Features intercooler
Hydraulic lifters yes
Timing drive two chains
Phase regulator no
Turbocharging yes
Recommended engine oil 5W-40
Engine oil capacity, liter 5.5
Fuel type diesel
Euro standards EURO 2
Fuel consumption, L/100 km (for Opel Vectra 1998)
— city
— highway
— combined
Engine lifespan, km ~330 000
Weight, kg 190

Disadvantages of the X20DTH engine

  • Most of the problems for the car owner are caused by malfunctions of the Bosch VP44 high-pressure fuel pump;
  • The most common fuel pump failure is the burnout of its control transistor;
  • If the fuel filter is incorrectly replaced, the system will simply air out here;
  • Oil can be mixed with diesel fuel due to the drying of the gaskets under the nozzles;
  • Also here, the EGR valve regularly wedges from soot or the particulate filter is clogged.

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